| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 33.2 | 40.6 | 47.7 | 57.0 | 65.8 | 74.7 | 83.1 | 82.5 | 72.0 | 58.6 | 41.4 | 33.8 | 57.5 |
| Highest Mean Max. Temperature (F) | 40.9 | 47.4 | 52.0 | 65.0 | 70.4 | 82.4 | 91.3 | 90.7 | 81.4 | 65.8 | 46.9 | 40.9 | 59.7 |
| Year Highest Occurred | 1983 | 1968 | 1986 | 1977 | 1983 | 1961 | 1985 | 1967 | 1990 | 1988 | 1981 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 19.9 | 29.5 | 41.0 | 51.3 | 59.2 | 68.0 | 76.8 | 76.4 | 63.6 | 54.1 | 27.2 | 22.7 | 54.1 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1962 | 1981 | 1986 | 1975 | 1985 | 1969 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 27.1 | 33.3 | 38.7 | 45.9 | 53.9 | 62.0 | 68.8 | 68.4 | 58.9 | 47.3 | 35.1 | 27.8 | 47.3 |
| Highest Mean Temperature (F) | 35.8 | 38.7 | 43.0 | 51.7 | 57.2 | 66.6 | 75.0 | 74.3 | 65.3 | 53.3 | 39.9 | 35.2 | 49.1 |
| Year Highest Occurred | 1983 | 1961 | 1983 | 1980 | 1987 | 1961 | 1985 | 1967 | 1990 | 1988 | 1981 | 1979 | 1967 |
| Lowest Mean Temperature (F) | 11.3 | 21.8 | 33.8 | 41.3 | 49.9 | 57.0 | 64.0 | 63.5 | 53.3 | 43.4 | 19.5 | 16.2 | 43.7 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1970 | 1974 | 1981 | 1986 | 1964 | 1985 | 1984 | 1985 | 1983 | 1985 |
| Mean Min. Temperature (F) | 20.8 | 25.9 | 29.6 | 34.7 | 41.9 | 49.2 | 54.4 | 54.3 | 45.8 | 36.0 | 28.8 | 21.7 | 36.9 |
| Highest Mean Min. Temperature (F) | 30.7 | 33.0 | 35.1 | 40.4 | 46.3 | 54.0 | 58.8 | 58.5 | 50.8 | 40.7 | 33.9 | 29.5 | 38.8 |
| Year Highest Occurred | 1983 | 1961 | 1983 | 1980 | 1980 | 1982 | 1975 | 1971 | 1966 | 1988 | 1983 | 1979 | 1983 |
| Lowest Mean Min. Temperature (F) | 2.7 | 14.0 | 22.5 | 30.5 | 38.6 | 45.5 | 50.5 | 50.3 | 41.1 | 32.2 | 11.7 | 9.7 | 33.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1972 | 1974 | 1976 | 1981 | 1964 | 1965 | 1984 | 1985 | 1983 | 1985 |
| Mean Precipitation (in.) | 1.98 | 1.49 | 1.49 | 1.18 | 1.41 | 1.26 | 0.67 | 0.72 | 0.73 | 0.99 | 2.15 | 2.42 | 16.49 |
| Highest Precipitation (in.) | 4.15 | 3.94 | 2.87 | 2.62 | 3.11 | 3.06 | 2.33 | 1.83 | 1.77 | 3.05 | 5.10 | 5.13 | 22.64 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1978 | 1990 | 1964 | 1990 | 1976 | 1982 | 1990 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.38 | 0.35 | 0.31 | 0.10 | 0.20 | 0.23 | 0.00 | 0.00 | 0.00 | 0.03 | 0.22 | 0.60 | 11.21 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1968 | 1982 | 1974 | 1973 | 1988 | 1990 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 1175. | 888. | 815. | 573. | 344. | 139. | 30. | 56. | 223. | 549. | 897. | 1153. | 6842. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 49. | 148. | 161. | 40. | 0. | 0. | 0. | 398. |